I'm looking for advise on how best to approach limiting WAN2 traffic in the event of a failover from WAN1.
Our WAN1 is a 1Gbps-FD fiber connection. If its online, we want all traffic types to use it inclusively.
Our WAN2 is connected to a 4G LTE modem with limited speeds and expensive bandwidth. If WAN1 goes offline, we only want to allow some VoIP, Point-of-Sale transactions, and dashboard control traffic to pass over it.
This would be really easy if we were able to use the 4G LTE fail-over USB port. It has a dedicated IP table for limiting traffic types.
I however can't find anything similar that allows for specific restrictions on WAN2.
Chiming in with a learned lession. If you're using a full-tunnel AutoVPN (or if any of the traffic you want to limit traverses the AutoVPN, to be specific), cellular firewall rules will not apply even with the bodge from support.